X-ray Images of the North Polar Region from the Chandra HRC-I Instrument
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Here are X-rays images (shown on the same brightness scale) of the north polar region obtained by Chandra HRC-I on different days, showing large variability in soft (0.1-10.0 keV) X-ray emissions from Earth s aurora. Note that the images are not snap shots, but are ~20-min scans of the northern auroral region in the HRC-I field-of-view. The brightness scale in Rayleighs (R) assumes an average effective area of 40 cm2. The day-night terminator at an altitude of 0 km is displayed with lighting. The day-night terminator at an altitude of 100 km is shown by the blue line.
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This data was scanned on January 24, 2004 from 20:01:25 UTC till January 24, 2004 20:22:19 UTC. The blue line near the surface day/night terminator is where the terminator is 100 km from the surface.
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This data was observed on January 30, 2004 from 03:06:20 till 03:26:50.The blue line near the surface day/night terminator is where the terminator is 100 km from the surface.
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This observation was taken from Feb 14, 2004 at 23:58 to Feb 15, 2004 at 00:18 UTC.The blue line near the surface day/night terminator is where the terminator is 100 km from the surface.
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April 13, 2004 - This data was observed from 3:46 UTC to 4:07 UTC. The blue line near the surface day/night terminator is where the terminator is 100 km from the surface.
Available formats:
2560 x 1920
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5 MB
160 x 80
PNG
23 KB
80 x 40
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6 KB
320 x 240
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10 KB
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This data was scanned on January 24, 2004 from 20:01:25 UTC till January 24, 2004 20:22:19 UTC.
Available formats:
2560 x 1920
TIFF
5 MB
320 x 240
JPEG
9 KB
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This data was observed on January 30, 2004 from 03:06:20 till 03:26:50.
Available formats:
2560 x 1920
TIFF
5 MB
320 x 240
JPEG
8 KB
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This observation was taken from Feb 14, 2004 at 23:58 to Feb 15, 2004 at 00:18 UTC.
Available formats:
2560 x 1920
TIFF
5 MB
320 x 240
JPEG
9 KB
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April 13, 2004 - This data was observed from 3:46 UTC to 4:07 UTC.
Available formats:
2560 x 1920
TIFF
5 MB
320 x 240
JPEG
10 KB
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X-Ray emissions colortable
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1011 B
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This data was scanned on January 24, 2004 from 20:01:25 UTC till January 24, 2004 20:22:19 UTC.
Available formats:
2560 x 1920
TIFF
4 MB
320 x 240
PNG
94 KB
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This data was observed on January 30, 2004 from 03:06:20 till 03:26:50.
Available formats:
2560 x 1920
TIFF
5 MB
320 x 240
PNG
88 KB
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This observation was taken from Feb 14, 2004 at 23:58 to Feb 15, 2004 at 00:18 UTC.
Available formats:
2560 x 1920
TIFF
6 MB
320 x 240
PNG
105 KB
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This observation was taken from Feb 14, 2004 at 23:58 to Feb 15, 2004 at 00:18 UTC. The terminator at 100 km has been removed.
Available formats:
2560 x 1920
TIFF
5 MB
320 x 240
PNG
105 KB
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April 13, 2004 - This data was observed from 3:46 UTC to 4:07 UTC.
Available formats:
2560 x 1920
TIFF
5 MB
320 x 240
PNG
99 KB
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| Animation Number: | 3165 |
| Animators: | Lori Perkins (SVS) (Lead) |
| | Greg Shirah (SVS) |
| Completed: | 2005-05-20 |
| Scientists: | Anil Bhardwaj (NASA/MSFC) |
| | Ron Elsner (NASA/MSFC) |
| | Randy Gladstone (SwRI) |
| | Megan Watzke (Harvard) |
| Instrument: | Chandra/HRC-I |
| Data Collected: | 2004/01/24, 2004/01/30, 2004/02/15, 2004/04/13 |
Keywords:
SVS
>> Aurora
SVS
>> X-ray
GCMD
>> EARTH SCIENCE
>> Cryosphere
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Please give credit for this item to
NASA/Goddard Space Flight Center
Scientific Visualization Studio |
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